2. 外语
  3. A、The establishment of the National Traffic Service. B、The introduction of safety devices and the tougher laws. C、The sharp warn

A、The establishment of the National Traffic Service. B、The introduction of safety devices and the tougher laws. C、The sharp warn

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问题
选项 A、The establishment of the National Traffic Service.
B、The introduction of safety devices and the tougher laws.
C、The sharp warnings of local traffic authorities.
D、The wholesale introduction of traffic rules.
答案B
解析 细节辨认题。短文提到美国自1950年以来，车祸的死亡人数在2009年降至最低，各地交通当局要感谢对安全带和安全气囊的采用，以及更严格的关于酒驾的法律的实施。
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大学英语六级

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